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关注：1
2013-05-23 12:21
求翻译：设计使用年限：30年 设计壁厚：≥5.7mm 执行标准：GB5099《钢质无缝气瓶》是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
设计使用年限：30年 设计壁厚：≥5.7mm 执行标准：GB5099《钢质无缝气瓶》
问题补充： |
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2013-05-23 12:21:38
Design life: 30 years of design wall thickness: ≥ 5.7mm implementation of standards: GB5099 "seamless steel gas cylinders."
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2013-05-23 12:23:18
design life: 30 Design wall thickness: ≥ 5.7 mm standard: GB 5099 the seamless steel gas cylinder >
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2013-05-23 12:24:58
Design service life: 30 year design wall thickness: ≥5.7mm carries out the standard: GB5099 "Steel Seamless Air bottle"
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2013-05-23 12:26:38
Design life: 30 design wall thickness: ≥ 5.7mm standard: GB5099 of the seamless steel gas cylinders
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2013-05-23 12:28:18
Design service life: Designed the wall to be thick in 30: Greater than or equal to 5.7mm and carry out the standard: GB5099 has not " sewn the gas cylinder in steel "
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